clean up, refactor, documentation

- reducing amount of splitting in configs
- documenting configuration

tasks/pkgs/git.yml

@@ -2,12 +2,12 @@
 - ansible.builtin.include_vars:
     file: git.yml
     name: _git
+- ansible.builtin.set_fact:
+    pkgconfig.git: "{{ _git | ansible.builtin.combine(pkgconfig.git) }}"
+- ansible.builtin.set_fact:
+    pkgconfig.git.pkgs: "{{ pkgconfig.git.pkgs[ansible_system] }}"
 
 - name: append to pkgs
   set_fact:
-    syspkgs: "{{ syspkgs + _git[ansible_system].pkgs }}"
-  tags:
-    - RedHat
-    - linux
-    - package
+    syspkgs: "{{ syspkgs + pkgconfig.git.pkgs }}"